title: Encapsulation of charge-diffuse peralkylated onium cations in the cavity of cucurbit[7]uril.
abstract: Cucurbit[7]uril binds, with considerable size selectivity, NR(4)(+), PR(4)(+), and SR(3)(+) cations (R=Me, Et, (n)Pr, (n)Bu), with the smaller guests inside its cavity, rather than at the carbonyl-lined portals.
authors.affiliation: Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Canada ON K7L 3N6.
authors.forename: Antony D
authors.initials: AD
authors.lastname: St-Jacques
authors.forename: Ian W
authors.initials: IW
authors.lastname: Wyman
authors.forename: Donal H
authors.initials: DH
authors.lastname: Macartney